Rebekah

When President Obama visits Minnesota this week, he plans to spend a day in the shoes of a St. Paul woman. In a new video posted online from the White House, the president says he was struck by a letter from a woman named Rebekah. In the letter, she writes about what she thinks needs changing, and her struggle to get ahead.

Some studies have shown running to be a better exercise when it comes to our health. But, other studies – even from the same data set – have seemingly shown the opposite. So, what is better: running or walking?